Horseshoe-machine



(No Model.) V3 Sheets--Sheet 2.

Z. V. PURDY.

l HGRSESHOE MACHINE. No. 378,111. Patented Feb. 21, 1888.

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V3 Sheets-Sheet 3.

(No Model.)

Z. V8. PURDY.

-HoRsBsHoB MACHINE,

Patented Feb. 21, 1888.

No. 378,11l`I @wi/inem Pnewumogmphm. wnmngnm n. c.

Unirse drains Parietti @trice ZACHARAH V. PURDY, OF BRMINGHAM, ALABAMA.

HORSESHOENACHIN SPECIFICATION forming part of Letters Patent No.378,111, dated ebrnary 2l, lf

Serial No. 235,674. (No InodeLl .To @ZZ whom it may concern:

.Be it known that I, Zaun/Antan V. PURDY, a citizen of the UnitedStates, residing at Birmingham, in the county of Jefferson and State ofAlabama, have invented certain new and useful Improvements inHorseshoe-Machines, of which the following is a specitication, referencebeing had therein to the accompanying drawings.

This invention relates to certain improvements in machines for forminghorseshoeblanks; and it has for its objects to so construct the partsthat they can be conveniently adj usted and reguiated so as to bring theproper pressure upon any desirable point of the blank during itsformation to forni blanks of various sizes and weight, as more fullyhereinafter set forth. illustrated in the accompanying drawings, inwhichm Figure l represents a top or plan View of myirnproved machinecomplete, with aportion broken away; Fig. 2, a longitudinal verticalsectional view of the same; Fig. 3, a transverse vertical sectional viewtaken on the line x x of Fig. l; Fig. a, a perspective view of theparts, detached, which bend the bar from which the blank is constructedaround the blanki'orining die. Fig. 5 represents a view ofa portion ofthe bed of the machine, showing the forming-die, anda portion of theguide and blank-delivering mechanism. Fig. 6 indicates a perspectiveview ofa series of guides or gibs whereby the jaws of the blank-bendingarms are guided to bend the blank bar around the forming-die, and Fig. 7a detail perspective view oi one of the parts of the machine.

The letter A indicates the bed of the machine, suitably mounted uponsupports B. Midway between the ends of the bed, at opposite sidesthereof, are located pillow-blocks C, forming bearings for the journalof the crankshaft l), which has at one projecting end a driving-wheel,E, by means of which it may be put in motion by a bandrunning from asuitable pulley.

To the crank-shaft are pivoted the pitmen F, which extend in oppositedirections and are connected with the traveling cross-heads Gr, whichslide on ways H at opposite sides of the bed of the machine, by means ofthe adjustable connections H', which l are provided with These objects Iattain by the meansr shanhs I, setting in longitudinal recesses at theends of the pitmen, wherein they are adjustably confined by means of thebindingscrews L. The cross-heads, near opposite ends, on the under sideare provided with recesses M, in which are pivoted the jaws N, whichbend the blank bar around the forming-die. The cross heads at oppositeends are formed with tongues P, which are arranged to slide between theupper and lower guides R, which are adjustably secured to the bed of themachine by means of the screws S. Between said guides aresecured theadjustable gibs T, which have their inner edges of such conformation asto force the jaws N against the blank bar and bend it around theforming-die as they are advanced by the pitinen and cross-heads. Thejaws N at their forward ends are recessed and provided withanti-friction rollers U, which bear against the inner edges of the gibsas the jaws are advanced toward the forming-die.

The guides R and the interposed gibs are confined between the bed of themachine and the metallic guide-plates V, the said plates being providedwith curved cani-grooves X, in which work the friction-rollers Y on thestuds Z, in order to open out thejaws and return them to normal positionwhen the traveling crossheads are drawn back.

Thejaws N are beveled on their inner forward edges, as indicated by theletter A', and are provided with cutting-edges B to cut oft' a suitablelength of the blank bar, which is fed in through groovcd guides C at oneside of the machine, the adjustment as to the length of such cut-offportion being regulated by the lower guide-plate R on the opposite sideof the machine to that from which the blank bar is fed.

TheletterD'indicatesthefo1'ming-dies,which may constitute part of thebed of the machine, or may be formed separately and attached thereto byany suitable means. The configurationof such dies is approximately thatof the interior of the horseshoe-blank to be bent around it. The forwardedges of the crossheads are curved, as indicated by the letter E', so asto conform to the contour of the toe of the forming-die, in order toproperly shape the toe of the shoe-blank as it is bent around theforming-die.

` ln the bed of the machine, at each. side of I charged.

thc forming-dies and at their outer edges, are formed converging groovesF', which have inclined surfaces G upon which the lifting-fingers IIride to raise and deliver the blank, when formed, throughdelivery-openings in the bed of the machine. These tin gers are pivotedto traveling carriages IZ and are provided with lateral guide-lugs K,which ride upon the inclined guides L and direct the ngersin theirmovement. The carriages are mounted upon wheels which travel uponplatforms M secured to or forming part of the bed of the machine, andthe said carriages are connected to the traveling cross-bars by means ofthe arms M2, pivoted between bearings N, secured to said cross-heads Gr.

rIhe operation of my machine is as follows: It will bc perceived that itis intended to form a blank at each end of the machine as the bendingdevices are moved back and forth. The blank bars are fed in through thegrooved guides C at the side of the machine at the proper time, and asthe jaws move forward a proper length is cut off by the cutting-edgesbefore mentioned. The forwardly4 moving cross-head and the jaws thengradually' force the separated portion against the formingdie and bendit around the same as the parts are advanced. Vhen bent upon the returnmovement of the parts, the pivoted fingers traveling in the grooves atlthe sides ofthe formingdie ride up on the inclined bearings therein andlift the blank therefrom and carry it toward the delivery-opening, whereit is dis- By reason of the adj ustahle connec tions of the cross-headsby which they are connected to the pitmen it will be apparent that saidcross-heads may be so adjusted with re snect to the forming-dies as toregulate the thickness of the shoe-blank at will by varying the pressurethereon, and by adjusting the gibs inwardly or outwardly the width ofthe sides and heels may be also regulated by bringing more or lesspressure upon the jaws. rIhe length of the blank bar out off isregulated by means of the lower guide-bars at the sides of the machine,which, being moved outwardly or inwardly, permit the blank bar to begaged for a separated portion of greater or less length, as may bedesired. In order to cool the metal and the partsfof the machine, air-blast pipes may be arranged at eac-h end of the machine, by means ofwhich cold air may be applied to the metal and t-hc parts of theinachiue for the pu pose.

The letter K2 indicates a datt-er, which is secured to the travelingcross-head and extends over the traveling cross bar, the object of whichis to hold the blank down around the forming-die during the bendingoperation, so as to keep the shoe-blank true during the bending.

In order to relievetheadjustable connections between the pitinen andcross-heads of undue strain, adjustable angle-irons (see Fig. 7) arefitted to the ends, which take up and bear the strain which wouldotherwise come upon the same.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s-

l. The combination, with the traveling crossheads, the bending -jaws,and the forming dies HX, ofthe fingers working in converging grooves ateach side of the forming-dies,and the traveling carriage to which saidfingers are at tached, the grooves having inclined bearing surfaces uponwhich the fingers ride to lift and deliver the blanks when finished,substantially as specified.

l2. The combination, with the bed of the machine, the travelingcross-heads, and the jaws provided with cuttingedges for severing thebar, of the adjustable guides and gibs and the grooved bar -gnideswhereby the blank bar may be fed to the machine and gaged and cut,substantially as set forth.

3. The combination, with the bed ofthe niachine, the travelingcrossheads, and the formingdies, of the bending-jaws provided withcutting-edges for severing the bars. the adj nstable guides and gibs,the grooved bar-guides,

the fingers HX, their carriage, and theinclined guides L',substantially' as described.

4. The coxnbinatiomin a horseshoemachine, of the traveling cross-headscurved at E and actuated bya crank, the pitinanrods and their adjnstable connections with the said crossheads, the forming-dies, thebending-jaws pivoted to the crossheads and provided with eutters andanti-friction rollers, the laterally-adjustable guides and gibs, thefingers HX and their carriages, and the arms M2, pivotally connectingthe carriages to hearings on the cross` heads, all substantially asdescribed,

5. The combination, with the horseshoe` forming dies and their jaws andthe traveling cross-heads, of the tlattcrs Y, secured to the cross-headsbetween said jaws, and alapted to operate substantially as described.

6. The combinatiomwith the cross-heads,the pitman-rods and theirconnections with said cross-heads, of the angle-irons K, the horseshoe-forming dies and jaws, the guides and gibs, the cam-slotted platesV, and the datters K2, all substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

ZACHARIAH V. PURDY.

iVltnesses:

C. M. ALEXANDER, M. P. CALLAN.

